Brake.



lie- 833,050. PATENTED OCT. 9, 1906.

W. H. HARRIS.

BRAKE.

APPLICATION 1 mm JAN. 13. 1906.

UNITED STATES PATENT OFFICE.

BRAKE.

Specification of Letters Patent.

Patented Oct. 9, 1906,

Application filed January 13, 1906. Serial No. 295,967.

To all whom it may concern:

Be it known that I, WILLIAM H. HARRIS, a citizen of the United States, residing at Newberry, in the county of Newberry and State of South Carolina, have invented new and useful Improvements in Brakes, of which the following is a specification.

This invention relates to wagon-brakes, and has for its object to simplify and improve the construction set forth in a prior patent, No. 796,328, granted to me August 1, 1905, the improvement hereinafter described resulting in greater reliability as regards the operation of the brake connections and also providing means for taking up any slack between' the v brake-operating lever and the brake beam and shoes, due to excessive wear or strain imposed upon the parts.

ith the above and other objects in view the invention consists in the novel construction, combination, and arrangement of parts. hereinafter. more fully described, illustrated, and claimed.

In the accompanying drawings, Figure 1 is a sectional view of the front portion of a wagon and running-gear, showing the improved brake mechanism applied thereto. Fig. 2 is a bottom plan view of the same. Fig. 3 is a detail section through the rear end portion of the tongue or pole, showing the antifriction-roller.

Referring to the drawings, 1 designates the hounds of the running-gear of a wagon; 2, the axle; 3, the carrying-wheels, and 4 the wagon-body. The wagon tongue or pole 5 is pivotally connected at 6 to the forwardlyprojecting portions of the hounds, the upward movement of the rear portion of the tongue being limited by means 0; a cross-bar or stop 7, which is secured rigidly to the under side of the ton us and brings up against the bottoms of the ounds, as shown in Figs. 1 and 2, thus arresting the downward movement of the forward extremity of the tongue or pole when the latter is about horizontal.

In carrying out the present invention the rear end of the tongue 5 is slotted, as shown at 8, and within said slot is arranged an antifriction-roller 9, journaled on a bolt or pin 10, extending transversely through the tongue.

Arranged just in rear of the roller 9 is an operating-lever 11, comprising a curved upper arm 12 and a pendent arm 13. This lever is fulcrumed intermediate its ends at the point 14 on a bracket or clip 15, which partially embraces the axle 2 and is permanently fastened thereto.

Connected to the lower arm of the lever 11 is an extensible brake connection or rod 16, having intermediate its ends a turnbuckle 17, having a threaded engagement with the two portions of the rod or connection, whereby such eonnection may be adjusted in length to suit the proper distance between the operating-lever and the brake-beam.

18 designates the brake-beam, which is mounted in suitable bearings on the runninggear which carries the brake-shoes 19, which bear against the wheels. The brake connection 16 is attached at its rear end to the brake-beam 18 and passes through a suitable guide or hanger 20, secured to and projecting downward from the frame of the runninggear of the wagon. As the forward end of the pole or tongue is elevated by the back pull of the animals the rear end of such pole or tongue is correspondingly depressed, causing the antifriction-roller 9 to travel against the rounded surface of the brake-operating lever 11 and, acting like a cam thereon, forcing the upper arm of said lever rearward and drawing the lower arm of said lever forward. This pulls on the brake connection 16 and carries the brake-shoes against the wheels. The distance between the brakeshoes and the wheels may be nicely adjusted by means of the turnbuckle 17, and by the same adjustment the brake-operating lever is brought into the proper relation to the antifriction-roller 9, carried by the tongue or pole of the vehicle.

I claim In a vehicle-brake, the combination with the running-gear, of a pole or tongue pivotally connected with the running-gear intermediate its ends and carrying a roller, brakeshoes supported from the running-gear, a brake-operating lever fulcrumed on a bracket connected with the axle and cooperating with the roller carried by the tongue, and an extensible connection between said lever and the brake-shoes, substantially as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

. WILLIAM H. HARRIS.

Witnesses: I

I. H. HUNT, J. T. MAYES. 

